2.3. Characterization 2.3.1. FT-IR spectra The IR spectra of different powder were recorded using FT-IR Spectrometer‚ Spectrum RX1‚ USA. The samples were prepared in the pellet form by pressing their mixed powder with KBr by the ratio 1:10 in the Perkin Elmer hydraulic device. 2.3.2. UV-Vis absorption spectra measurement UV-Vis spectra were recorded in N‚ N-Dimethylformamide (DMF) in the range 200-800 nm. All the UV-vis measurements were accomplished by a Shimadzu PC3101 spectrophotometer‚ under
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A SEMINAR REPORT ON AGEING OF BITUMEN ABSTRACT Bitumen is a common binder and has gradually replaced road tar for construction purposes mainly because of the cancer risk. It is a mixture of organic liquids that are highly viscous‚ black‚ sticky and entirely soluble in carbon disulfide. The ageing of bitumen is a complex process based on the chemical composition of the bitumen‚ the pavement structure and climate. It leads to deterioration of pavements and leads to loss of adhesive
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1 • 11/ECE/70; 8th SEMESTER • ELECTRONICS AND COMMUNICATIONS ENGG • RIKARNOB BHATTACHARYYA SEMINAR: ADVENT OF LIGHT FIDELITY (LiFi) NIT DURGAPUR Presentation contents INTRO WORKIN G STANDARD S CHALLENG ES APPLICATIO NS CONCLUSIO N 2 INTRODUCTION As has been introduced in the abstract‚ LiFi works with the help of LEDs. A special light bulb in question will have several LEDs (the LED will be made from Gallium Nitride or GaN) each of which will be transmitting an array or a stream of
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Amazon link: goo.gl/fPJck3 Salewa Women’s Wildfire S GTX • Synthetic • Imported • Vibram sole • The grid structure of the exa shell wraps the upper and enhances the precision of the fit and improves forefoot balance • Upper in breathable mesh insures fresh feet and ventilation even when ascending under a scorching sun • Gore tex extended comfort lining • Exa shell over injected 3D cage • 100 percent blister free comfort FEATURES of the Salewa Women’s Wildfire S GTX Shoe Microfiber forefoot EXA
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9.5.2.4 Use available evidence to suggest reasons for the differences in the range of electromagnetic radiation detected by humans and other animals: Reasons for differences in detection between humans and other animals: The differences between human detection range and other animals detection range relates to their environment in which they live in and their way of life. The detection out of the visible spectrum is usually an adaptation for survival of the organism. Humans detection
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Bleach Oxidation of 9-Hydroxyfluorene The purpose of this experiment was to oxidize an alcohol (9-hydroxyfluorene) to a ketone (9-fluorenone) using aqueous sodium hypochlorite (bleach) as the oxidizing agent‚ while introducing techniques used in microscale experiments. Reaction: Results 1. Recrystallized Product Yield Product yield = (actual yield/theoretical yield) x 100% 3mL 9-hydroxyfluorene x (1mL/1000mL) x (0.09 mol/L) = 2.7 x 10-4 moles 0.05g 9-fluorenone / (180.20g/mol) = 2.77 x 10-4
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The world as a whole currently faces several dramatic problems. Examples of these world problems include terrorism‚ desertification‚ overpopulation‚ deforestation‚ pollution‚ and world hunger. Of all these world problems the two that should currently be focused on are deforestation and pollution. Millions of acres of forests are chopped down by large lumber companies for the means of economic success. The world’s air and water is constantly polluted by dangerous machinery emissions and factorial
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Intense terahertz antenna array with interdigital electrodes Lei Hou‚ Wei Shi*‚ Ming Xu‚ Yong Chen Department of applied physics‚ Xi’an University of Technology‚ Shaanxi‚ China‚ 710048 ABSTRACT In this work a powerful terahertz antenna array with interdigital electrodes is fabricated‚ and the performance of one antenna unit is compared with a conventional resonant dipole antenna. The antenna unit has a better capacity of generating THz wave compared with a conventional resonant dipole antenna
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Danielle Silverstein PHY 101 Section 10497 March 4‚ 2013 Light up this World Purpose: In this lab experiment‚ LED lights will be used to show how when E&M radiation is absorbed‚ the energy is converted to heat. A drop of isopropyl alcohol will absorb light energy of different colors‚ and the evaporation rate of the alcohol will be measured. The key to this lab is the evaporation rate is directly related to the energy of the light shining on the drop. Materials: * * LEDs
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TITLE CONTACTLESS TACHOMETER ABSTRACT: The aim of the project is to design a contactless speed sensing device (tachometer) for a motor. Traditional tachometers require a physical contact to the shaft of the motor to measure the speed. In certain applications‚ where it is not possible to measure the speed directly‚ it is possible for a contactless tachometer to take the readings from a certain distance. This is the main motivation behind choosing this project. This contactless tachometer
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